著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL "Wardhaugh, Ronald",An Introduction to sociolinguistics,2nd ed,B. Blackwell,1992,Blackwell textbooks in linguistics,,0631183531,,https://cir.nii.ac.jp/crid/1130000796962609536